US-BLAST- MARATHON

AFP

A video grab shows the victims of one of the blasts at the finish line of the Marathon in Boston, Massachusetts on April, 15, 2013. At least two people were killed and 23 others wounded when two explosions struck near the finish line of the Boston Marathon, sparking scenes of panic, police said. AFP PHOTO / Marc Hagopian / AFPTV

A video grab shows the victims of one of the blasts at the finish line of the Marathon in Boston, Massachusetts on April, 15, 2013. At least two people were killed and 23 others wounded when two explosions struck near the finish line of the Boston Marathon, sparking scenes of panic, police said. AFP PHOTO / Marc Hagopian / AFPTV

US-BLAST- MARATHON

AFP

A video grab shows the victims of one of the blasts at the finish line of the Marathon in Boston, Massachusetts on April, 15, 2013. At least two people were killed and 23 others wounded when two explosions struck near the finish line of the Boston Marathon, sparking scenes of panic, police said. AFP PHOTO / Marc Hagopian /AFPTV

A video grab shows the victims of one of the blasts at the finish line of the Marathon in Boston, Massachusetts on April, 15, 2013. At least two people were killed and 23 others wounded when two explosions struck near the finish line of the Boston Marathon, sparking scenes of panic, police said. AFP PHOTO / Marc Hagopian /AFPTV

Multiple People Injured After Explosions Near Finish Line at Boston Marathon

The White House

In this handout provided by the White House, U.S. President Barack Obama (L) talks on the phone with FBI Director Robert Mueller to receive an update on the explosions that occurred in Boston, in the Oval Office of the White House, April 15, 2013 in Washinton, DC. Seated with the President are Lisa Monaco, Assistant to the President for Homeland Security and Counterterrorism, and Chief of Staff Denis McDonough. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon.

In this handout provided by the White House, U.S. President Barack Obama (L) talks on the phone with FBI Director Robert Mueller to receive an update on the explosions that occurred in Boston, in the Oval Office of the White House, April 15, 2013 in Washinton, DC. Seated with the President are Lisa Monaco, Assistant to the President for Homeland Security and Counterterrorism, and Chief of Staff Denis McDonough. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon.

Explosions At 117th Boston Marathon

Boston Globe

Matt Smith (left) of Boston and Zach Mione of Portland, Ore., helped Sydney Corcoran of Lowell on the Boylston Street sidewalk at the scene of the first explosion near the finish line of the 117th Boston Marathon. They applied pressure and tried to stop the bleeding of her injured leg.

Matt Smith (left) of Boston and Zach Mione of Portland, Ore., helped Sydney Corcoran of Lowell on the Boylston Street sidewalk at the scene of the first explosion near the finish line of the 117th Boston Marathon. They applied pressure and tried to stop the bleeding of her injured leg.

Keywords

THIS IMAGE CONTAINS GRAPHIC CONTENT) A person who was injured in an... News Photo2013 Boston Marathon,Boston - Massachusetts,Boston Marathon Bombing,Emergencies and Disasters,Exploding,Finish Line,Horizontal,Marathon,Massachusetts,People,Stretcher,Track And Field,USAPhotographer Boston GlobeCollection: Boston Globe 2013 - The Boston GlobeBOSTON - APRIL 15: (EDITOR'S NOTE: THIS IMAGE CONTAINS GRAPHIC CONTENT) A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene on a stretcher. (Photo by David L. Ryan/The Boston Globe via Getty Images)